Autocar-wheel.



R. KRONBNBBRG.

AUTDGAB WHEEL.

Arrmonmn FILED 001.1) 190s.

. Patented Oct. 25, 1910.

UNITED STATES PATENToFFICE-" 'nUnoLr nizoNENnnno, or oHLIe's, annimmt.

l moua-WHEEL. I

' Application led October 1l, 1909. Serial No. $420,570.

To all 'itmay (foncer-n:l Y Be it known that I, RUDOLF K RONENBERG, asubject-'of tlie.l{ing of Prussia, German Einperon residing at Ohlig's,inthe Provinee o'f the Rhine, 'Kingdom of Prussia, Gorinaii' Empire,have invented certain new and useful Improvements in Autocar-lVheels,ofV which the following is a specification! The invention relates toautocar wheels with removable rini, and has for its object' to provide adevice which perniits of the rcnioval and the replacement of the rim inthe easiest manncr,`and 1n which without special care in the handling,`the riin` when replaced, will always receive an exactly ceib teredposition. Moreover any unintentional releasing of the rim wheels in useis coinf pletely prevented, and in spite of itseasy detachment, aconnection between the spokes 'and the rin'i is provided, which withoutrequiring special fastei'iing devices and without perforatingr the rim,is completely reliable.

'lhe automobile wheel of in)r invention as above set forth isillustrated in the accomianying drawing as follows:

' Figure 1 shows a vertical section through the wheel shown in sideelevation in Fig.' 2. Fig. 2 shows the corresponding elevation. Fig. 3shows a section through the end of a spoke with clamping device and riinof .the actual size and partially in elevation. Fig. -l shows anelevation of the end of the spoke and the riiu at. right angles to Fig.3. ln both Fig.r3 and Fig. 't the position is as- 'sunied to he thatwhen the rim is fixed in place. Fig. 5 shows a View from above of thesupportingr body placed in the hollo spoke. Fig. 6 is an elevation'siniilar to Fig. 3 in the position in which the removal of the-rim canbe elected. Fig, 7 shows a eispective elevation of the supporting KK v.

T he wheel spokesaije indicated by 1 an'd4 the wheel i'ini by 2.' Ineach hollow Spoke isplaeed a support-ing body?) which is rigidlyconnected with the spoke -by ineans of a cross pin or the like. Theoiiter surfaces of the supporti|igliody 3 lias two inclined sui-fares 5.:'i and four (hit surfaces 6, 6 and 7, 7 placed :il righ( angles to theaxis of the spoke. In the ends of each hollow spoke is a looselyinserted bolt- S which is provided with correspondingly sloping{laf-surfaces also placed at. right.- angles to the spoke, so

Specification of netter; Patent..t I

' turn or-rather rriore,

' the axis'of the spoke,

. is placed enten oct. 25, 1910.

.-thatin the position shown in 'Figa-ti when the riin is det-ached,.th`epart' 3 and the bolt v8 engafwin one anotherand appear to form 'a closedbody, l The s'lo lin surfaces of the bolt 8 'are shown at 9,9 tlietitsurfaces at l0, l and .11, 11. If the bolt. 8 be turnedlout of theposition shown in Fig. 6 byV a'quarter faces 5, and 9, :9 slip over oneanother and the bolt- 8 is ,pushed out of the hollow space, untiltheflaitf'surfaces 46 and 10, l0 rest upon one another. The bolt is thenushed forward exactly by the ainount'of t. e distance between theliatsurfacesand 7 and 10 and 11. In order toliniit the turning of theinwidly'directed hub, ofthe bolt, the surfaces 12, 12, which are placedparallel 'to are provided on the pa-rt- 3, and t-he surfaces 14, 14 onthe bolt. 8.' In order to Iimit-theturning when the -hub of the bolt isoutwar lydirected, there is cnt into the hollow ioko a slot 15 in whichthe `"screwf 13 fixe Slldt'. il

'hen the bolt b' is in the operative that is the extended position tlienthe flat surfaces of the`bolt. 8 which ar directed at right angles tothe axis of t-)e spoke, restupon like surfaces of the pa .3. Thepressure and strains which u-'ouldfotherwsebe transmitted to the spoke.axle during the working` are. thus completely tzrlre'ir-upbytheaforesaid flat surfaces, so that there is no tendency to force down thebolt 8 intothe spokes 1n oiderto turn the bolt by reason of strainsoperating 'in the direction of the spoke 'ax-is. As, however, the shocksproduced in opcrationmmr have'a'teiidency to cause a tui-ning of the lt8, the end ofthe spoke is provided with "n longitudinal slot 16, so thatit ac ts'as a spring, and around the end of the spoke the clamping ring17 which can be drawn together by means of the screw-18. lVhen this hasbeen done, then the bolt 8 cannot turn' even when subject to shocks andtherefore can never take a position vwhich enables it to thenthe slopingsurmove inward. The outer end of the bolt 8 power of re'sistaiioe.-Intoithese depressions- QO'there engage the ends. of the'correspon'd--ing bolts 8, withoutgcausin'gj,theurim l rforated`- or any special:Pneeansfor attachment between the rim and4 the bolts.

As will be obvious from ,this description, the operating of the devicenotwithstanding or in consequence of the uncommonly simple construction,is an extremely e one; above all moreover, the. rim is invaria lycentered and without necessitating s' ial 'attention to this point inthe f the rim is tobe removed it is only necessary after releasing thescrews 18 to turn back the bolts 8 a little, releasing 'the' old rimthen to insert the new rim vand .to turni-the bolts- 8 backA again intoVtheir workingnposition, where upon lafter'tightening the screws 18then-im is fixed in its place immovably and' reliably centered.

To'facilitate the turning of the bolts, these latter are rovided with atside surfaces 21, over -w icha suitably shaped key' canl engage. Theflat surfaces moreover show at a-glance whether all' the bolts are inthe extended position when therim is in place.

WhatIclaim is: `1. =An autocar-.wheel comprising in com hina-tion alremovable rim, slotted. hollow faces and flat su l operate with said suportin -bodxesA ro- ,plaoed around the ends of t l VVitness'es:

spokes 1, a supporting' body 43 in the interi-oir of each hollow l slmkehaving inclined sur- A' aces, bolts 8 adapted to covlded -with corresponin 'inc ined sur aces andA dat surfaces and am ing rings 17 lise saidspokes,

substantially as set forth.

l2. Improved autocar-wheel comprisin in combination a removable rim, theho low spokesl having inclinedv slots 15, a supporting body 3 intheinterior of each hollow spoke, a series of bolts 8 each boltrestingagainst one of the ,said supporting bodies,

both, parts having coperating inclmed su'i'-, faces and flat surfacesrespectively, screw's' '13 fixed ,in the said bolts 8 and adapted 'toslide in the said inclined slots 15, subs'tnn` tially as Set forth. l

In testimony, whereof I have signedvmyname to this specification in thepresenceof two subscribing Witnesses.'

RUDOLF KRONENBERG.

H. E. MEnsHorr, LOUIS VANnonN.

